Methods: A total of 338 patients with femoral catheter will be included in the study. The patients will be randomized to be included in the control group (without tunnelling) or in the group with catheter tunneled 2-3 cm subcutaneously. After removal, catheter will be analyzed for colonization (primary outcome). Quantitative culture will be used as described by Brun-Buisson for intravascular catheters. The site of insertion will be monitored daily for any signs of infection (secondary outcome).